"To everything there is a season, a time to every purpose under heaven." i live by this Bible verse. It is important to cherish each moment. If it's time to rest, relish the quiet, don't think you have to do anything else. If you know you will feel better by completing some task, chunk off a reasonable amount, set a goal, get it done, celebrate. Don't get bogged down by thinking about things that don't have to be done, or doing things that don't add value to your life. My German heritage is all about being productive, and it took me a long time to realize that reading a book, doing handwork, watching a favorite tv show, looking out the window have real value. Good luck to you.